ARM: keystone2: spl: move board specific code

The initialization of PLLs is a part of board specific code, so
move it appropriate places.

Acked-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
diff --git a/board/ti/ks2_evm/board.c b/board/ti/ks2_evm/board.c
index dfe7be6..c07d284 100644
--- a/board/ti/ks2_evm/board.c
+++ b/board/ti/ks2_evm/board.c
@@ -9,6 +9,7 @@
 
 #include "board.h"
 #include <common.h>
+#include <spl.h>
 #include <exports.h>
 #include <fdt_support.h>
 #include <asm/arch/ddr3.h>
@@ -83,6 +84,24 @@
 }
 #endif
 
+#ifdef CONFIG_SPL_BUILD
+void spl_board_init(void)
+{
+	spl_init_keystone_plls();
+	preloader_console_init();
+}
+
+u32 spl_boot_device(void)
+{
+#if defined(CONFIG_SPL_SPI_LOAD)
+	return BOOT_DEVICE_SPI;
+#else
+	puts("Unknown boot device\n");
+	hang();
+#endif
+}
+#endif
+
 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 void ft_board_setup(void *blob, bd_t *bd)
 {